/* Spawns a rolling boulder in a given direction, which is one of
* N, E, S, or W */
func NewBoulder(g interfaces.Game, roll interfaces.Direction) *Entity {
damage := 70
me := newBasicMonster(g)
me.SetSubtype(interfaces.ENTITY_MONSTER_SUBTYPE_BOULDER)
me.SetName("Boulder " + strconv.Itoa(me.GetEntityId()))
firstReposition := true
me.TurnFunction = func(tick int) bool {
if me.IsDead() {
return false
}
x, y := roll.XYDelta()
boardId, myX, myY := me.GetPosition()
myX += x
myY += y
entity := me.Game.GetTangibleEntityAtSpace(boardId, myX, myY)
if entity != nil {
me.SwapPositionWith(entity)
entity.ChangeArdour(-damage)
log.Println(me.GetName(), "ran over", entity.GetName())
} else {
if me.Game.IsWall(boardId, myX, myY) == false {
me.SetPosition(boardId, myX, myY)
} else {
me.Die()
}
}
return true
}
me.RepositionFunction = func(fromBId, fromX, fromY, toBId, toX, toY int) {
if fromBId != toBId || me.IsDead() {
return
}
/* Skip the first time we reposition, since that's us spawning */
if firstReposition {
firstReposition = false
return
}
roll = util.PrimaryDirection(fromX, fromY, toX, toY)
}
return me
}
/* Makes a boulder trap that throws a boulder from the nearest wall
* in the given direction */
func NewBoulderTrap(g interfaces.Game, wallDir interfaces.Direction) *Entity {
me := newBasicTrigger(g)
me.SetSubtype(interfaces.ENTITY_TRIGGER_SUBTYPE_BOULDER_TRAP)
me.SetName("Boulder trap " + strconv.Itoa(me.GetEntityId()) +
" from " + wallDir.Name() + " wall")
me.TroddenFunction = func(by interfaces.Entity) {
if by.IsTangible() == false || me.IsDead() {
return
}
x, y := wallDir.XYDelta()
boulderDir := wallDir.Opposite()
boardId, boulderX, boulderY := me.GetPosition()
for me.Game.IsWall(boardId, boulderX, boulderY) == false {
boulderX += x
boulderY += y
}
boulderX -= x
boulderY -= y
boulder := NewBoulder(me.Game, boulderDir)
me.Game.PlaceAtNearestTile(boulder, boardId, boulderX, boulderY)
me.Game.AddEntity(boulder)
me.Die()
sprungTrap := NewSprungTrap(g)
sprungTrap.SetPosition(me.GetPosition())
me.Game.AddEntity(sprungTrap)
}
return me
}